-93.15% is the change from 657 to 45
Calculation steps:
[( 45 - 657 ) ÷ 657] x 100 = -93.15%
Formula
Percentage change = [(45 - 657) / 657] x 100
Subtract the new number by the original number
45 - 657 = -612
-612 ÷ 657 = -0.9315068493150684
-0.9315068493150684 x 100 = -93.15%